Research of EV´s charging and discharging control considering demand response

Large scale of Electric Vehicles(EVs) connected into the power grid will cause a significant impact on distribution network, such as network loss, voltage drop, etc. To solve the problems, this paper proposes a novel control system for EV charge-discharge response to Demand Side. This system adopts an algorithm based on dq0 coordinate transformation to measure grid frequency, adjusts the charge-discharge behaviors of EV dynamically according to the grid status and ultimately realizes EV´s charge-discharge process responded to Demand Side. The simulation and experiment verify that the control system can maintain good accuracy and real-time performance.